<template>
  <!-- 商品分类导航 -->
  <div class="type-nav">
    <div class="container">
      <div @mouseenter="showGoodsMenu" @mouseleave="leaveGoodsMenu">
      <h2 class="all" >全部商品分类</h2>
      <transition name="bounce">
      <div class="sort" v-show="isshow">
        <div class="all-sort-list2">
          <div class="item" v-for="l1 in $store.state.Home.meunArr" :key="l1.categoryId">
            <h3>
              <!-- 一级分类标签 -->
              <a href="javascript:;" @click="toSearch({categoryName:l1.categoryName,category1Id:l1.categoryId})">{{ l1.categoryName}}</a>
            </h3>
            <div class="item-list clearfix">
              <div class="subitem">
                <dl class="fore" v-for="l2 in l1.categoryChild" :key="l2.categoryId">
                  <dt>
                    <!-- 二级分类标签 -->
                      <a href="javascript:;" @click="toSearch({categoryName:l2.categoryName,category2Id:l2.categoryId})" >{{ l2.categoryName}}</a>
                  </dt>
                  <dd>
                    <em v-for="l3 in l2.categoryChild" :key="l3.categoryId">
                         <!-- 三级级分类标签 -->
                        <a href="javascript:;" @click="toSearch({categoryName:l3.categoryName,category3Id:l3.categoryId})">{{ l3.categoryName}}</a>
                    </em>
                  </dd>
                </dl>
              </div>
            </div>
          </div>

        </div>
      </div>
    </transition>
  </div>
     <nav class="nav">
        <a href="###">服装城</a>
        <a href="###">美妆馆</a>
        <a href="###">尚品汇超市</a>
        <a href="###">全球购</a>
        <a href="###">闪购</a>
        <a href="###">团购</a>
        <a href="###">有趣</a>
        <a href="###">秒杀</a>
      </nav>
    </div>
  </div>
</template>

<script>
import { reqBanner, reqgetlist } from '@/api';
import { mapState } from 'vuex';
export default {
  name: 'TypeNav',
  data(){
   return{
    isshow:this.$route.path === '/home'
   }
  },
  computed: {
    ...mapState({
      // 轮播数据
      bannerList: state => state.Home.bannerList,
    }),
  },
  methods: {
    // 鼠标移入展示分类数据
    showGoodsMenu(){
     this.isshow = true
    },
    // 鼠标移入隐藏分类数据
    leaveGoodsMenu(){
      // 如果路径不是home,那么就鼠标移出隐藏
      if (this.$route.path !== '/home') {
         this.isshow = false
    }
   },
  //  跳转的函数
   toSearch(value){
      // 跳转到search组件并携带参数
      this.$router.push({
        name:'search',
        query:value
      }).catch(()=>{})
   }
  },
  mounted() {
    // 发请求获取首页数据
    let res = reqgetlist().then(
      (res) => {
        this.$store.commit('GetMenuList', res.data);
      },
      (err) => {
        console.log(err, '-----------出错了');
      }
    );

    // 通知vuex发请求获取banner轮播图数据
    this.$store.dispatch('getBanner')
  },
};
</script>


<!-- 样式 -->
<style scoped lang="less">
.type-nav {
  border-bottom: 2px solid #e1251b;

  .container {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    position: relative;

    .all {
      width: 210px;
      height: 45px;
      background-color: #e1251b;
      line-height: 45px;
      text-align: center;
      color: #fff;
      font-size: 14px;
      font-weight: bold;
    }

    .nav {
      a {
        height: 45px;
        margin: 0 22px;
        line-height: 45px;
        font-size: 16px;
        color: #333;
      }
    }

    .sort {
      position: absolute;
      left: 0;
      top: 45px;
      width: 210px;
      height: 461px;
      position: absolute;
      background: #fafafa;
      z-index: 999;

      .all-sort-list2 {
        .item {
          h3 {
            line-height: 30px;
            font-size: 14px;
            font-weight: 400;
            overflow: hidden;
            padding: 0 20px;
            margin: 0;

            a {
              color: #333;
            }
          }

          h3:hover {
            background-color: aquamarine;
          }

          .item-list {
            display: none;
            position: absolute;
            width: 734px;
            min-height: 460px;
            background: #f7f7f7;
            left: 210px;
            border: 1px solid #ddd;
            top: 0;
            z-index: 9999 !important;

            .subitem {
              float: left;
              width: 650px;
              padding: 0 4px 0 8px;

              dl {
                border-top: 1px solid #eee;
                padding: 6px 0;
                overflow: hidden;
                zoom: 1;

                &.fore {
                  border-top: 0;
                }

                dt {
                  float: left;
                  width: 54px;
                  line-height: 22px;
                  text-align: right;
                  padding: 3px 6px 0 0;
                  font-weight: 700;
                }

                dd {
                  float: left;
                  width: 415px;
                  padding: 3px 0 0;
                  overflow: hidden;

                  em {
                    float: left;
                    height: 14px;
                    line-height: 14px;
                    padding: 0 8px;
                    margin-top: 5px;
                    border-left: 1px solid #ccc;
                  }
                }
              }
            }
          }

          &:hover {
            .item-list {
              display: block;
            }
          }
        }
      }
    }
  }
  .bounce-enter-active {
  animation: bounce-in 1s;
}
.bounce-leave-active {
  animation: bounce-in 1s reverse;
}
@keyframes bounce-in {
  0% {
    height: 0px;
    opacity: 0;
  }
  // 50% {
  //   transform: scale(1.5);
  // }
  100% {
   height: 461px;
   opacity: 1;
  }
}
}
</style>